在探究“重力的大小跟什么因素有关系”的实验中，按照图甲所示，把钩码逐个挂在弹簧测力计上，分别测出它们受到的重力，并记录在下面的表格中．
质量m/g
100
200
300
500
重力G/N
1
2
3
4
5
如图是每个面上都有一个汉字的正方体的一种展开图，那么在原正方体的表面上，与汉字“美"相对的面上的汉字是 （ ）
比较大小：﹣3____ ﹣π2．
A. My grandparents live far from my home. I often visit them at the weekend.
B. My grandma likes shopping. I usually go shopping with her.
C. Ann always visits her grandpa on Sunday. She always has lunch with him.
D. Tim's grandpa likes fishing. He always goes fishing with his grandpa.
⒈ ____
⒉ ____
⒊ ____
⒋ ____
(t为参数)与曲线C: 
(θ为参数)的位置关系.